Two atoms with the same number of protons but a different number of neutrons are

40.0 mL of 0.300 M NaOH are mixed with 40.0 mL of 0.300 M HBr in a calorimeter. The temperature increases from 25.00 °C to 27.00 °C. Assume that the specific heat of the solution is the same as that of pure water (4.

Tritium 3 1H decays to 3 2He by beta emission. Find the energy released in the process. Answer in units of keV.

Calculate the vapor pressure of a solution made by dissolving 109 grams of glucose (molar mass = 180.2 g/mol in 920.0 ml of water at 25 °c. the vapor pressure of pure water at 25 °c is 23.76 mm hg. assume the density of the solution is 1.00 g/ml.

The word elliptical refers to what type of shape? A. oval B. rectangle C. square D. bar

In a second-order reaction (one that is second order in one reactant), cutting in half the concentration of that reactant will have what effect on the reaction rate? A) The reaction rate will remain the same. B) The reaction rate will double.

in its natural state neon has no definite shape or volume it's atoms move fast and are far apart which term describes neon in its natural state?

Based on your answer to part c, how many bonding electrons and nonbonding electrons are there in the lewis structure of hcn?

What element was used to make the first atomic bomb

Water (H2O) is composed of the same elements as hydrogen peroxide (H2O2). how do their properties compare?

How do kinetic tiles work?